2.2. Starting the Virtual Machine

2.2.1. Starting a Virtual Machine

Click Compute → Virtual Machines and select a virtual machine with a status of Down.

Click Run.

The Status of the virtual machine changes to Up, and the operating system installation begins. Open a console to the virtual machine if one does not open automatically.

Note

A virtual machine will not start on a host that the CPU is overloaded on. By default, a host’s CPU is considered overloaded if it has a load of more than 80% for 5 minutes but these values can be changed using scheduling policies. See Scheduling Policies in the Administration Guide for more information.

2.2.3. Opening a Serial Console to a Virtual Machine

You can access a virtual machine’s serial console from the command line instead of opening a console from the Administration Portal or the VM Portal. The serial console is emulated through VirtIO channels, using SSH and key pairs. The Manager acts as a proxy for the connection, provides information about virtual machine placement, and stores the authentication keys. You can add public keys for each user from either the Administration Portal or the VM Portal. You can access serial consoles for only those virtual machines for which you have appropriate permissions.

Important

To access the serial console of a virtual machine, the user must have UserVmManager, SuperUser, or UserInstanceManager permission on that virtual machine. These permissions must be explicitly defined for each user. It is not enough to assign these permissions to Everyone.

The serial console is accessed through TCP port 2222 on the Manager. This port is opened during engine-setup on new installations. To change the port, see ovirt-vmconsole/README.

The serial console relies on the ovirt-vmconsole package and the ovirt-vmconsole-proxy on the Manager, and the ovirt-vmconsole package and the ovirt-vmconsole-host package on the virtualization hosts. These packages are installed by default on new installations. To install the packages on existing installations, reinstall the host. See Reinstalling Hosts in the Administration Guide.

Enabling a Virtual Machine’s Serial Console

On the virtual machine whose serial console you are accessing, add the following lines to /etc/default/grub:

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